In last few years, humic acerbity fertilizer is become farming endowment market heat concept, of all sorts of category, content " black fertilizer " flood the market, pass away the sham as the genuine, difficult differentiate of farmer true and false. As we have learned, to achieve the goal of black fertilizer, a few enterprises add pink of ash of iron oxide red of coloring agent, oxidation, flue, carbon to wait for stock, a few enterprises use weathered coal, brown coal directly. So, how to differentiate with simple method piece which kind of be active and humic acerbity fertilizer?
Learn to see this first at 3 o'clock
It is to see surface color
General active is humic the color of acerbity fertilizer is not very black, present grey black mostly or black Brown;
2 it is the color that sees aqueous solution
Take a few sample grain, put in the plastic bottle of clear water, wait for grain complete collapse solution, observe the color of aqueous solution, general active is humic the aqueous solution color of acerbity fertilizer appears dark brown or dark brown;
3 it is change of the color after seeing moisture absorption
General active is humic of acerbity fertilizer have good hygroscopic, breath out two damp with the mouth or grasp in the palm of the hand with damp sweat, can see active is humic acerbity fertilizer grain becomes special Hei Liang. Of course farmer is bought humic acerbity fertilizer still should choose old brand of well-known company, choice.
Have these 4 essential factor
The active with high grade production is humic fertilizer of acerbity function sex must have 4 essential factor:
It is high grade raw material
High quality humic the high grade weathered coal that acerbity fertilizer chooses Xinjiang, Inner Mongolia commonly and Yunnan are young lignite, undertake reasonable conpatibility of medicines;
2 it is activation craft
Adopt super- small smash and the method that oxidation extraction combines, can obtain younger member quantity, more containing the physiology with luscious group, taller oxygen is active;
3 it is chela combines technology
Humic acid and nitrogen, phosphor, Potassium combines reaction, also decide the move is humic the result that acerbity fertilizer applies, chela adds up to reaction is not humic mix simply of acid and nitrogen, phosphor, Potassium, the crucial index such as the PH that aborning need essence allows to control online response, temperature, moisture;
4 it is to add dosage
Humic of acid and nitrogen, phosphor, Potassium mix scale beforehand, also affect humic of acerbity fertilizer farming art the effect. Not be humic acerbity dosage has been jumped over more more, old practice proves, humic acid content is more than 3% when, farming art the effect is stabler, more distinct, this also is " contain humic acerbity Shui Rong is fat " the label quantity in occupation standard.
